#include <QCoreApplication>
#include <iostream>
using namespace std;

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    int x;
    cout<<"Vvedite chislo: ";
    cin>>x;
    if(x>0)
    cout<<"Polozitelnoe, ";
    if(x<0)
    cout<<"Otricatelnoe, ";
    if(x==0)
    {
    cout<<"Nulevoe.";
    return 0;
    }
    if(x%2==0)
    cout<<"chetnoe.";
    else
    cout<<"nechetnoe.";
    return a.exec();
}
